From: Ralf Baechle <ralf@linux-mips.org>
To: Johannes Stezenbach <js@convergence.de>,
Kieran Fulke <kieran@pawsoff.org>,
linux-mips@linux-mips.org
Subject: Re: IRQ problem on cobalt / 2.6.6
Date: Sun, 16 May 2004 19:04:45 +0200 [thread overview]
Message-ID: <20040516170445.GA4793@linux-mips.org> (raw)
In-Reply-To: <20040516152113.GA9390@convergence.de>
On Sun, May 16, 2004 at 05:21:13PM +0200, Johannes Stezenbach wrote:
> In essence, I believe something other than the saa7146 must be asserting
> irq 23. Or is it possible that a bug in the PCI init stuff in
> saa7146_core.c can
> cause this? Any hints how we could debug this would be welcome.
arch/mips/cobalt/irq.c:cobalt_irq() looks pretty suspect. It connects
CAUSEF_IP7 and interrupt 23 - but the CPU's builtin count / compare
interrupt already uses this bit.
Sharing the timer interrupt with something else isn't impossible but seems
a less than bright thing to do. Somebody with production hw to test
should compare this interrupt dispatch function with old working code
from 2.2 or 2.4 ...
Ralf
next prev parent reply other threads:[~2004-05-16 17:05 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-13 18:30 IRQ problem on cobalt / 2.6.6 Kieran Fulke
2004-05-14 7:43 ` Peter Horton
2004-05-16 11:36 ` Kieran Fulke
2004-05-16 15:21 ` Johannes Stezenbach
2004-05-16 15:21 ` Johannes Stezenbach
2004-05-16 17:04 ` Ralf Baechle [this message]
2004-05-16 17:11 ` Kieran Fulke
2004-05-16 17:21 ` Johannes Stezenbach
2004-05-16 18:04 ` Kieran Fulke
2004-05-17 8:40 ` Peter Horton
2004-05-17 11:46 ` Kieran Fulke
2004-05-17 11:57 ` Peter Horton
2004-05-17 12:04 ` Kieran Fulke
2004-05-17 12:20 ` Peter Horton
2004-05-17 15:07 ` Stuart Longland
2004-05-18 7:34 ` Peter Horton
2004-05-18 17:39 ` Kieran Fulke
2004-05-18 20:59 ` Kieran Fulke
2004-05-18 21:09 ` Kieran Fulke
2004-05-18 21:12 ` Peter Horton
[not found] ` <20040518211810.GA29636@getyour.pawsoff.org>
2004-05-18 21:19 ` Kieran Fulke
2004-05-18 21:46 ` Kumba
2004-05-18 21:38 ` Peter Horton
2004-05-18 22:02 ` Kieran Fulke
2004-05-19 11:23 ` Maciej W. Rozycki
2004-05-19 12:57 ` Peter Horton
-- strict thread matches above, loose matches on Subject: below --
2004-05-16 17:37 Kieran Fulke
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